# CVE-2024-9143: libssl3t64: Issue summary: Use of the low-level GF(2^m) elliptic curve APIs withuntrustedexplicit values for the field polynomial... CVE-2024-9143 is fixed in 15 products on 1 platform, first by DEBIAN-CVE-2024-9143, released October 16, 2024. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2024-9143 - Priority: High - CVSS: 8.8 (Low) - EPSS: 0.0900 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 16, 2024 ## Description Issue summary: Use of the low-level GF(2^m) elliptic curve APIs withuntrustedexplicit values for the field polynomial can lead to out-of-bounds memoryreadsor writes.Impact summary: Out of bound memory writes can lead to an application crashoreven a possibility of a remote code execution, however, in all theprotocolsinvolving Elliptic Curve Cryptography that we're aware of, either only"namedcurves" are supported, or, if explicit curve parameters are supported, theyspecify an X9.62 encoding of binary (GF(2^m)) curves that can't representproblematic input values. Thus the likelihood of existence of a vulnerableapplication is low.In particular, the X9.62 encoding is used for ECC keys in X.509certificates,so problematic inputs cannot occur in the context of processing X.509certificates. Any problematic use-cases would have to be using an "exotic"curve encoding.The affected APIs include: EC_GROUP_new_curve_GF2m(),EC_GROUP_new_from_params(),and various supporting BN_GF2m_*() functions.Applications working with "exotic" explicit binary (GF(2^m)) curveparameters,that make it possible to represent invalid field polynomials with a zeroconstant term, via the above or similar APIs, may terminate abruptly as aresult of reading or writing outside of array bounds. Remote codeexecutioncannot easily be ruled out.The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | efi-shell-aa64 Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [efi-shell-aa64 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-efi-shell-aa64-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | efi-shell-arm Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [efi-shell-arm 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-efi-shell-arm-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | efi-shell-ia32 Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [efi-shell-ia32 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-efi-shell-ia32-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | efi-shell-riscv64 Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [efi-shell-riscv64 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-efi-shell-riscv64-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | efi-shell-x64 Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [efi-shell-x64 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-efi-shell-x64-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | libssl1.1 Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.24 | [libssl1.1 1.1.1f-1ubuntu2.24](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24.md) | Jan 20, 2025 | | Linux | libssl3 Ubuntu 22.04.1 LTS (jammy) | 3.0.2-0ubuntu1.19 | [libssl3 3.0.2-0ubuntu1.19](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libssl3-3.0.2-0ubuntu1.19.md) | Jan 20, 2025 | | Linux | libssl3t64 Ubuntu 24.04.5 LTS (noble) | 3.0.13-0ubuntu3.5 | [libssl3t64 3.0.13-0ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libssl3t64-3.0.13-0ubuntu3.5.md) | Jan 20, 2025 | | Linux | libssl3t64 Ubuntu 24.10 (oracular) | 3.3.1-2ubuntu2.1 | [libssl3t64 3.3.1-2ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libssl3t64-3.3.1-2ubuntu2.1.md) | Feb 11, 2025 | | Linux | openssl Debian 12.15 (bookworm) | 3.0.15-1~deb12u1 | [DEBIAN-CVE-2024-9143](https://patchblox.com/security/data/fix/linux/debian-cve-2024-9143.md) | Oct 16, 2024 | | Linux | openssl Debian 13.5 (trixie) | 3.3.2-2 | [DEBIAN-CVE-2024-9143](https://patchblox.com/security/data/fix/linux/debian-cve-2024-9143.md) | Oct 16, 2024 | | Linux | openssl Debian 14 | 3.3.2-2 | [DEBIAN-CVE-2024-9143](https://patchblox.com/security/data/fix/linux/debian-cve-2024-9143.md) | Oct 16, 2024 | | Linux | openssl Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.24 | [openssl 1.1.1f-1ubuntu2.24](https://patchblox.com/security/data/fix/linux/ubuntu-focal-openssl-1.1.1f-1ubuntu2.24.md) | Jan 20, 2025 | | Linux | openssl Ubuntu 22.04.1 LTS (jammy) | 3.0.2-0ubuntu1.19 | [openssl 3.0.2-0ubuntu1.19](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-openssl-3.0.2-0ubuntu1.19.md) | Jan 20, 2025 | | Linux | openssl Ubuntu 24.04.5 LTS (noble) | 3.0.13-0ubuntu3.5 | [openssl 3.0.13-0ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-openssl-3.0.13-0ubuntu3.5.md) | Jan 20, 2025 | | Linux | openssl Ubuntu 24.10 (oracular) | 3.3.1-2ubuntu2.1 | [openssl 3.3.1-2ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-openssl-3.3.1-2ubuntu2.1.md) | Feb 11, 2025 | | Linux | ovmf Ubuntu 22.04.1 LTS (jammy) | 2022.02-3ubuntu0.22.04.4 | [ovmf 2022.02-3ubuntu0.22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ovmf-2022.02-3ubuntu0.22.04.4.md) | Aug 12, 2025 | | Linux | ovmf Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [ovmf 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ovmf-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | ovmf-ia32 Ubuntu 22.04.1 LTS (jammy) | 2022.02-3ubuntu0.22.04.4 | [ovmf-ia32 2022.02-3ubuntu0.22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ovmf-ia32-2022.02-3ubuntu0.22.04.4.md) | Aug 12, 2025 | | Linux | ovmf-ia32 Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [ovmf-ia32 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ovmf-ia32-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | qemu-efi Ubuntu 22.04.1 LTS (jammy) | 2022.02-3ubuntu0.22.04.4 | [qemu-efi 2022.02-3ubuntu0.22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-qemu-efi-2022.02-3ubuntu0.22.04.4.md) | Aug 12, 2025 | | Linux | qemu-efi-aarch64 Ubuntu 22.04.1 LTS (jammy) | 2022.02-3ubuntu0.22.04.4 | [qemu-efi-aarch64 2022.02-3ubuntu0.22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-qemu-efi-aarch64-2022.02-3ubuntu0.22.04.4.md) | Aug 12, 2025 | | Linux | qemu-efi-aarch64 Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [qemu-efi-aarch64 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-qemu-efi-aarch64-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | qemu-efi-arm Ubuntu 22.04.1 LTS (jammy) | 2022.02-3ubuntu0.22.04.4 | [qemu-efi-arm 2022.02-3ubuntu0.22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-qemu-efi-arm-2022.02-3ubuntu0.22.04.4.md) | Aug 12, 2025 | | Linux | qemu-efi-arm Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [qemu-efi-arm 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-qemu-efi-arm-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | | Linux | qemu-efi-riscv64 Ubuntu 24.04.5 LTS (noble) | 2024.02-2ubuntu0.6 | [qemu-efi-riscv64 2024.02-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-qemu-efi-riscv64-2024.02-2ubuntu0.6.md) | Aug 12, 2025 | --- Data as of 2026-11-08T06:59:42Z UTC. 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